Saturday, August 20, 2011

round table question for reasoning

I have been asked several times to explain more on New pattern of reasoning questions and that too about round table, so here i am taking a problem for round table which are being asked currently in the exams
Q ) V, U, T are sitting in a circle facing centre. A, B, and C are also sitting in that circle, but 2 of them facing opposite to the centre. V is second to the left of C. U is second to the right of A. B is third to the left of T. C is second to the Right of T. A and V are sitting adjacent to each other.
Ans ) Now to solve these new questions first of all try to figure out that DIRECTION of which of them is given to us i.e., facing centre or outwards. In this question we are sure od the direction of V,U,T all of them facing centre. but we are not sure of directions of A,B,C. so we will take V,U,T as our reference. Important point to be noted here is that never start with any probable information, pick only confirm information and surely there will be confirmed information given by the examiner. So now we will proceed further.
Information is given that
V is second to the left of C
and we are not sure about direction of C, so leave this information.
Proceed Further, next information is
U is second to the right of A“, here also we are not sure about direction of A, so leave it too.
Next we have, “B is third to the left of T“, and here we are sure about direction of T, so draw T anywhere on the circle, i am comfortable with bottom position so i will start from there.
1
Coming to next information “C is second to the Right of T”, here also we know position of T so we Place C on its position, and now arrangement becomes
2
Now its given that A V are adjacent to each other, and we can easily figure out that only place left for adjacent components is in clockwise positions from T. But problem here is where should we place A and where to place V. Now we come back to the informations we left out, it is given that “V is second to the left of C” but as per our arrangement T is second to the left of C, so If C is sitting facing outward direction we get position of V which is only possible at one place i.e. adjacent to B, and hence position of A.
3
Now we have succeeded in following
Placed all elements in their Correct place
Three Elements V,U,T facing Centre
C Facing Outward Direction.
Now we have to just find one more thing i.e. Which of the two A and B is facing Outward direction, so we will come to another information which we left out i.e. “U is second to the right of A”, which is only possible when A is Facing Centre, hence we now know that C and B are facing outward direction

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